HID: i2c-hid: use uniform debugging APIs

Only two locations in i2c-hid are using the standard dev_dbg() APIs.
The rest are all using the custom i2c_hid_dbg(), which in turn uses
dev_dbg().
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/i2c-hid/i2c-hid-core.c

@@ -850,7 +850,7 @@ static int i2c_hid_init_irq(struct i2c_client *client)
 	unsigned long irqflags = 0;
 	int ret;
 
-	dev_dbg(&client->dev, "Requesting IRQ: %d\n", client->irq);
+	i2c_hid_dbg(ihid, "Requesting IRQ: %d\n", client->irq);
 
 	if (!irq_get_trigger_type(client->irq))
 		irqflags = IRQF_TRIGGER_LOW;
@@ -994,7 +994,7 @@ int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops,
 	/* Make sure there is something at this address */
 	ret = i2c_smbus_read_byte(client);
 	if (ret < 0) {
-		dev_dbg(&client->dev, "nothing at this address: %d\n", ret);
+		i2c_hid_dbg(ihid, "nothing at this address: %d\n", ret);
 		ret = -ENXIO;
 		goto err_powered;
 	}